Use of guideway oil for the guide rail of machine tools

机床导轨在选用导轨润滑油的时候，既要考虑润滑油的润滑性，同时也应当满足导轨功效。所用的导轨润滑油具有良好的爬行性，抗磨损性等要求。本篇主要讲述机床导轨的选用润滑油知识：

When the guide rail lubricants are used, the lubrication of the lubricating oil should be considered, and the efficiency of the guide rail should also be satisfied. The guideway lubricants used have good reptile and wear resistance requirements. This article mainly talks about the selection of lubricating oils for machine tool guides.

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所用的导轨润滑油既要满足导轨的润滑要求，同时又能作为液压系统的液压介质。

The lubricating oil used in the guide rail not only meets the lubrication requirements of the guide rail, but also acts as the hydraulic medium for the hydraulic system.

例如坐标镗床之类的机床，导轨油粘度（50℃）应选择高些（40-90mm2/s)；像各类磨床，常常将导轨润滑油由液压系统供给，而液压系统要求较高，必须满足，此时导轨-液压润滑油的粘度（50℃）应选得低些（20-40mm2/s），即液压系统所需要的粘度。

For example, a machine tool such as a coordinate boring machine, the viscosity of the guide oil (50) should be higher (40-90mm2/s); like various grinders, the guide lubricating oil is often supplied by the hydraulic system, and the hydraulic system is required to be satisfied. At this time, the viscosity of the guide - hydraulic lubricating oil (50 degrees C) should be lower (20-40mm2/s), that is, hydraulic system The viscosity required by the system.

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按滑动速度和平均压力选用导轨油粘度。

According to the sliding speed and average pressure, the guide oil viscosity is selected.

其中导轨油粘度与国际GB7632：“机床用润滑剂的选用”中所推荐的两种导轨油L-G68、L-G150（相当的老牌号40号、90号），和两种导轨-液压油L-HG32与L-HC68（相当的老牌号20号和40号）的粘度相当。

The viscosity of the guideway oil and the international GB7632: "the selection of lubricants for machine tools", two kinds of guide oil L-G68, L-G150 (equivalent number 40, 90), and two kinds of guideway hydraulic oil L-HG32 and L-HC68 (equivalent number 20 and 40) have the same viscosity.

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根据国外机床导轨润滑实际应用来选用导轨油。在选用导轨润滑剂时，还可参考国外现有机床导轨润滑实际应用的例子来选用。比如：卧式车床、钻床、铣床选用L-HL32、L-HL46液压油；万能磨、外圆磨、内圆磨、平磨选用L-HG32到L-HG68液压油等。

According to the practical application of machine tool guide lubrication abroad, guide oil is selected. When selecting guide lubricants, we can refer to the practical examples of the existing machine tool guide lubrication in foreign countries. For example, horizontal lathe, drilling machine, milling machine use L-HL32, L-HL46 hydraulic oil; universal grinding, cylindrical grinding, internal grinding, flat grinding L-HG32 to L-HG68 hydraulic oil and so on.